I haven't changed a flat tire on a bike since I was a kid. Trust me, it's been a very long time. The last flat I had was on my late Trek WSD 3700 in the summer of 2007. The tires on that bike were like mountain bike tires, really beefy. I took the bike to the LBS and got skinnier tires on it. Then, of course, the tragedy occurred -- I ran her over accidently. I put her to rest and use parts off of her.

I sure hope changing a tire is like riding a bike, you never forget how to do it. I know someday it's going to happen and I'll be forced to change the tire.